CA2014552A1 - Optical repeater and optical network using the same - Google Patents

Optical repeater and optical network using the same

Info

Publication number
CA2014552A1
CA2014552A1 CA2014552A CA2014552A CA2014552A1 CA 2014552 A1 CA2014552 A1 CA 2014552A1 CA 2014552 A CA2014552 A CA 2014552A CA 2014552 A CA2014552 A CA 2014552A CA 2014552 A1 CA2014552 A1 CA 2014552A1
Authority
CA
Canada
Prior art keywords
optical
repeater
pump light
input
same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2014552A
Other languages
French (fr)
Other versions
CA2014552C (en
Inventor
Kazuo Aida
Shigendo Nishi
Masatoshi Saruwatari
Kiyoshi Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of CA2014552A1 publication Critical patent/CA2014552A1/en
Application granted granted Critical
Publication of CA2014552C publication Critical patent/CA2014552C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/2933—Signal power control considering the whole optical path
    • H04B10/2935—Signal power control considering the whole optical path with a cascade of amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
    • H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/25—Distortion or dispersion compensation
    • H04B2210/258—Distortion or dispersion compensation treating each wavelength or wavelength band separately

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)

Abstract

At least one optical repeater is connected in series to an optical signal transmission fiber of an optical fiber cable interconnecting transmitting and receiving terminals, and the optical repeater has an optical amplifier which is excited by pump light to amplify signal light. The pump light is supplied from the outside of the optical repeater, and the pump light supplied is input into the optical amplifier via at least one of its input end and output end. The optical repeater may include an optical divider for dividing the pump light supplied thereto into two, which are input into the optical amplifier via its input end and output end, respectively.
CA002014552A 1989-04-14 1990-04-12 Optical repeater and optical network using the same Expired - Lifetime CA2014552C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9457989 1989-04-14
JP94579/89 1989-04-14
JP10400889 1989-04-24
JP104008/89 1989-04-24

Publications (2)

Publication Number Publication Date
CA2014552A1 true CA2014552A1 (en) 1990-10-14
CA2014552C CA2014552C (en) 1995-01-17

Family

ID=26435850

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002014552A Expired - Lifetime CA2014552C (en) 1989-04-14 1990-04-12 Optical repeater and optical network using the same

Country Status (5)

Country Link
US (1) US5083874A (en)
EP (1) EP0392493B1 (en)
AU (1) AU632108B2 (en)
CA (1) CA2014552C (en)
DE (1) DE69011718T2 (en)

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US5191586A (en) * 1991-07-18 1993-03-02 General Instrument Corporation Narrow band incoherent optical carrier generator
GB9115453D0 (en) * 1991-07-18 1991-09-04 British Telecomm Fault location in optical systems
US5309475A (en) * 1991-10-01 1994-05-03 Abb Power T&D Company Inc. Data interchange network
US5185826A (en) * 1992-02-07 1993-02-09 At&T Bell Laboratories Hybrid pumping arrangement for doped fiber amplifiers
US5239607A (en) * 1992-06-23 1993-08-24 Bell Communications Research, Inc. Optical fiber amplifier with flattened gain
US5463488A (en) * 1992-07-31 1995-10-31 At&T Ipm Corp. Distribution of clock signals by pump power modulation in an optically amplified network
US5241414A (en) * 1992-08-21 1993-08-31 At&T Bell Laboratories Fault tolerant optical amplifier arrangement
US5253104A (en) * 1992-09-15 1993-10-12 At&T Bell Laboratories Balanced optical amplifier
US5245680A (en) * 1993-02-05 1993-09-14 Unisys Corporation Grin lens optical backplane with dual transmitter-receiver repeaters
US5440415A (en) * 1993-08-04 1995-08-08 At&T Corp. Optical successive modulation-muliplexing for fiber optical network
US5363234A (en) * 1993-10-14 1994-11-08 Corning Incorporated Amplifier having pump fiber filter
SE504278C2 (en) * 1995-02-22 1996-12-23 Telia Ab Suppression-free optical connection
JPH0993200A (en) * 1995-09-27 1997-04-04 Nec Corp Optical amplification relay transmitter
US5933552A (en) * 1996-04-25 1999-08-03 The Furukawa Electric Co., Ltd. Optical filter, manufacturing method thereof and optical amplifier equipped with said optical filter
US6198570B1 (en) * 1996-04-05 2001-03-06 The Furukawa Electric Co., Ltd. Optical filter, manufacturing method thereof, and optical amplifier equipped with said optical filter
JP3839519B2 (en) * 1996-04-22 2006-11-01 浜松ホトニクス株式会社 Fiber optic plate
US6025947A (en) 1996-05-02 2000-02-15 Fujitsu Limited Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
US5898801A (en) * 1998-01-29 1999-04-27 Lockheed Martin Corporation Optical transport system
US6025949A (en) * 1997-06-10 2000-02-15 Tyco Submarine Systems Ltd. Line monitoring of an optical transmission system using pilot signals
CA2320872A1 (en) 1998-02-20 1999-08-26 Paul N. Freeman Upgradable, gain flattened fiber amplifiers for wdm applications
US6603596B2 (en) * 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
US6239888B1 (en) 1998-04-24 2001-05-29 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
US6868237B2 (en) 1998-04-24 2005-03-15 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
AU3731799A (en) * 1998-05-18 1999-12-06 Sony Computer Entertainment Inc. External operation device and entertainment system
US6839522B2 (en) 1998-07-21 2005-01-04 Corvis Corporation Optical signal varying devices, systems and methods
US6344922B1 (en) 1998-07-21 2002-02-05 Corvis Corporation Optical signal varying devices
US6115174A (en) 1998-07-21 2000-09-05 Corvis Corporation Optical signal varying devices
US6356383B1 (en) 1999-04-02 2002-03-12 Corvis Corporation Optical transmission systems including optical amplifiers apparatuses and methods
US6236499B1 (en) * 1999-04-15 2001-05-22 Nortel Networks Limited Highly scalable modular optical amplifier based subsystem
US6757098B2 (en) * 1999-04-15 2004-06-29 Nortel Network Limited Highly scalable modular optical amplifier based subsystem
JP3527671B2 (en) * 1999-04-23 2004-05-17 富士通株式会社 Method of controlling wavelength characteristics of optical transmission power by Raman amplification, wavelength division multiplexing optical communication system and optical amplifier using the same
US6587261B1 (en) * 1999-05-24 2003-07-01 Corvis Corporation Optical transmission systems including optical amplifiers and methods of use therein
US6674971B1 (en) 1999-09-03 2004-01-06 Teraconnect, Inc. Optical communication network with receiver reserved channel
FR2800218B1 (en) * 1999-10-22 2002-01-11 Algety Telecom FIBER OPTIC TRANSMISSION SYSTEM USING RZ PULSES
FR2800219B1 (en) * 1999-10-22 2006-06-30 Algety Telecom POWER ADJUSTMENT METHOD FOR WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYSTEM
US6763195B1 (en) * 2000-01-13 2004-07-13 Lightpointe Communications, Inc. Hybrid wireless optical and radio frequency communication link
US6344925B1 (en) 2000-03-03 2002-02-05 Corvis Corporation Optical systems and methods and optical amplifiers for use therein
JP4057214B2 (en) * 2000-03-06 2008-03-05 富士通株式会社 Distributed optical amplification apparatus and method, and optical communication system
DE60100529T2 (en) * 2000-08-09 2004-04-15 Lucent Technologies Inc. Optical cable balanced in terms of effective area
US20020101874A1 (en) * 2000-11-21 2002-08-01 Whittaker G. Allan Physical layer transparent transport information encapsulation methods and systems
US20020080447A1 (en) * 2000-12-21 2002-06-27 Julian Fells Transmission system with enhanced repeaters
US6889009B2 (en) * 2001-04-16 2005-05-03 Lightpointe Communications, Inc. Integrated environmental control and management system for free-space optical communication systems
US20020171896A1 (en) * 2001-05-21 2002-11-21 Lightpointe Communications, Inc. Free-space optical communication system employing wavelength conversion
US20030090765A1 (en) * 2001-11-09 2003-05-15 Neff Brian W. Free-space optical communication system
US7085497B2 (en) 2002-04-03 2006-08-01 Lockheed Martin Corporation Vehicular communication system
US6879434B2 (en) * 2002-07-11 2005-04-12 Fujitsu Network Communications, Inc. Distributed raman amplifier for optical network and method
US6768833B2 (en) * 2002-09-06 2004-07-27 Corvis Corporation Optical communications systems including a branching unit and associated devices and methods
US6912339B2 (en) * 2002-09-27 2005-06-28 Lockheed Martin Corporation Optical interface devices having balanced amplification
US20040076434A1 (en) * 2002-09-27 2004-04-22 Whittaker G. Allan Optical distribution network for RF and other analog signals
US7283480B1 (en) 2002-11-12 2007-10-16 Lockheed Martin Corporation Network system health monitoring using cantor set signals
US7349629B1 (en) 2002-11-26 2008-03-25 Lockheed Martin Corporation Methods and systems for creating a digital interconnect fabric
US7424228B1 (en) 2003-03-31 2008-09-09 Lockheed Martin Corporation High dynamic range radio frequency to optical link
US7570887B2 (en) * 2003-03-31 2009-08-04 Lockheed Martin Corporation Optical network interface systems and devices
US7440699B1 (en) 2004-06-28 2008-10-21 Lockheed Martin Corporation Systems, devices and methods for transmitting and receiving signals on an optical network
US7371966B2 (en) * 2005-06-30 2008-05-13 Intel Corporation High speed active flex cable link
JP2012063154A (en) * 2010-09-14 2012-03-29 Seiko Epson Corp Detection device
US20120294619A1 (en) * 2011-05-19 2012-11-22 Tyco Electronics Subsea Communications Llc Novel architecture for undersea repeaterless systems
GB2533160A (en) * 2014-12-12 2016-06-15 Ge Oil & Gas Uk Ltd Repeaters

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US3729690A (en) * 1961-10-27 1973-04-24 American Optical Corp Means for producing and amplifying optical energy
US4546476A (en) * 1982-12-10 1985-10-08 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
GB2151868B (en) * 1983-12-16 1986-12-17 Standard Telephones Cables Ltd Optical amplifiers
US4699452A (en) * 1985-10-28 1987-10-13 American Telephone And Telegraph Company, At&T Bell Laboratories Optical communications system comprising Raman amplification means
US4790619A (en) * 1986-04-25 1988-12-13 American Telephone And Telegraph Company, At&T Bell Laboratories Apparatus comprising Raman-active optical fiber
JPH0727149B2 (en) * 1986-11-04 1995-03-29 沖電気工業株式会社 Optical coupler

Also Published As

Publication number Publication date
EP0392493A1 (en) 1990-10-17
CA2014552C (en) 1995-01-17
AU632108B2 (en) 1992-12-17
AU5325890A (en) 1990-10-18
EP0392493B1 (en) 1994-08-24
DE69011718T2 (en) 1995-02-02
US5083874A (en) 1992-01-28
DE69011718D1 (en) 1994-09-29

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Legal Events

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EEER Examination request
MKEX Expiry